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Lua i Stíl Chicago (17ú heag.)Sponsel, Heinz. Nautilus: Heinz Sponsel. Murnau [u.a.]: Lux, 1959.
Lua MLA (8ú heag.)Sponsel, Heinz. Nautilus: Heinz Sponsel. Lux, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.